Breedbandkarakter

Breedbandkarakter (Dutch for "broadband character") is an informal concept used in telecommunications and signal processing to describe the spectral profile of a broadband signal or system. It refers to how the energy or gain is distributed across the frequency range that the system can carry, and how this distribution affects performance such as data rate, distortion, and noise sensitivity. The term is not a formal engineering standard, but it appears in Dutch-language texts to compare different channels or modulation schemes by their spectral characteristics.

A breedbandkarakter can be characterized by the transfer function H(f) or by the power spectral density S(f) over the operating bandwidth B. Key attributes include the bandwidth extent, the flatness of the response across the band, and the presence of peaks, notches, or slope. A flat breedbandkarakter is generally desirable for uniform transmission across frequencies; a sloped or highly selective character may require equalization or selective filtering.

In practice, engineers use quantitative measures such as bandwidth, group delay, and the magnitude response to assess the breedbandkarakter. It is relevant in the design of broadband communication systems, such as digital subscriber line, cable, wireless, or optical networks, where the ability to carry many frequencies simultaneously is essential.

See also: bandwidth, frequency response, power spectral density, channel characterization.